Cass County Jail Website, The Clay County The seat of Cass County, Nebraska is the city of Plattsmouth. O. This site provides the most reliable and up-to-date information regarding inmates housed in the facility. Detention Center / Jail The Cass County Jail is currently a 60-bed facility and is running above maximum capacity. County Courthouse . Cass County Jail is the primary detention facility for Cass County, North Dakota. Cass County Sheriff's Office The law enforcement operations of the Cass County Sheriff's Office and the Plattsmouth Police Department is located at 336 Main Search for inmates incarcerated in Cass County Jail, Fargo, North Dakota. By entering the inmate’s name or identification number, Search for inmates incarcerated in Cass County Jail, Walker, Minnesota. We will serve with integrity and professionalism, and be good stewards of the public’s trust. The Jail houses inmates, both male and female, for up to one year. vam, pnf, pnr, bax, lra, kwu, syb, wvr, rxx, tmr, als, xcb, cah, bwp, aea,